Programming Articles - Page 2242 of 3366

To get all the interfaces implemented or inherited by the current Type, the code is as follows −Example Live Demousing System; public class Demo {    public static void Main() {       Type type = typeof(float);       Type myInterface = type.GetInterface("IFormattable", true);       Type[] myInterfaces = type.GetInterfaces();       Console.WriteLine("Interface = "+myInterface);       Console.WriteLine("All the Interfaces...");       for (int i = 0; i < myInterfaces.Length; i++)       Console.WriteLine(""+myInterfaces[i]);    } }OutputThis will produce the following output −Interface = System.IFormattable All the Interfaces... System.IComparable System.IFormattable System.IConvertible System.IComparable`1[System.Single] System.IEquatable`1[System.Single]Let us see another example −Example Live ... Read More

To get a specific interface implemented or inherited by the current Type, the code is as follows −Example Live Demousing System; public class Demo {    public static void Main() {       Type type = typeof(double);       Type myInterface = type.GetInterface("IFormattable");       Console.WriteLine("Interface = "+myInterface);    } }OutputThis will produce the following output −Interface = System.IFormattableExampleLet us see another example − Live Demousing System; public class Demo {    public static void Main() {       Type type = typeof(float);       Type myInterface = type.GetInterface("IFormattable",true);       Console.WriteLine("Interface = "+myInterface);    } }OutputThis will produce the following output −Interface = System.IFormattable

The lambda expressions were introduced in Java 8 and facilitate functional programming. A lambda expression works nicely together only with functional interfaces and we cannot use lambda expressions with more than one abstract method.Characteristics of Lambda ExpressionOptional Type Declaration − There is no need to declare the type of a parameter. The compiler inferences the same from the value of the parameter.Optional Parenthesis around Parameter − There is no need to declare a single parameter in parenthesis. For multiple parameters, parentheses are required.Optional Curly Braces − There is no need to use curly braces in the expression body if the body contains a ... Read More

To get the TypeCode for value type UInt64, the code is as follows −Example Live Demousing System; public class Demo {    public static void Main() {       ulong val1 = 55;       ulong val2 = 100;       TypeCode type1 = val1.GetTypeCode();       TypeCode type2 = val2.GetTypeCode();       Console.WriteLine("Typecode for val1 = "+type1);       Console.WriteLine("Typecode for val2 = "+type2);    } }OutputThis will produce the following output −Typecode for val1 = UInt64 Typecode for val2 = UInt64ExampleLet us see another example −using System; public class Demo {    public ... Read More

To check whether the Dictionary contains a specific value or not, the code is as follows −Example Live Demousing System; using System.Collections.Generic; public class Demo {    public static void Main() {       Dictionary dict =       new Dictionary();       dict.Add("One", "John");       dict.Add("Two", "Tom");       dict.Add("Three", "Jacob");       dict.Add("Four", "Kevin");       dict.Add("Five", "Nathan");       Console.WriteLine("Count of elements = "+dict.Count);       Console.WriteLine("Key/value pairs...");       foreach(KeyValuePair res in dict) {          Console.WriteLine("Key = {0}, Value = {1}", res.Key, res.Value); ... Read More

The parameters are used to pass and receive data from a method. Let us first see the syntax −Access Specifier − This determines the visibility of a variable or a method from another class.Return type − A method may return a value. The return type is the data type of the value the method returns. If the method is not returning any values, then the return type is void.Method name − Method name is a unique identifier and it is case sensitive. It cannot be same as any other identifier declared in the class.Parameter list − Enclosed between parentheses, the ... Read More

To reverse the order of the elements in the entire List, the code is as follows −Example Live Demousing System; using System.Collections.Generic; public class Demo {    public static void Main(String[] args) {       List list = new List();       list.Add("One");       list.Add("Two");       list.Add("Three");       list.Add("Four");       list.Add("Five");       list.Add("Six");       list.Add("Seven");       list.Add("Eight");       Console.WriteLine("Enumerator iterates through the list elements...");       List.Enumerator demoEnum = list.GetEnumerator();       while (demoEnum.MoveNext()) {          string res ... Read More

To reverse the order of the elements in the entire ArrayList, the code is as follows −Example Live Demousing System; using System.Collections; public class Demo {    public static void Main(String[] args) {       ArrayList list1 = new ArrayList();       list1.Add("A");       list1.Add("B");       list1.Add("C");       list1.Add("D");       list1.Add("E");       list1.Add("F");       list1.Add("G");       list1.Add("H");       list1.Add("I");       Console.WriteLine("Elements in ArrayList1...");       foreach (string res in list1) {          Console.WriteLine(res);       } ... Read More

To set all bits in the BitArray to the specified value, the code is as follows −Example Live Demousing System; using System.Collections; public class Demo {    public static void Main() {       BitArray arr = new BitArray(5);       arr[0] = false;       arr[1] = false;       arr[2] = false;       arr[3] = false;       Console.WriteLine("BitArray...");       foreach(Object ob in arr) {          Console.WriteLine(ob);       }       arr.SetAll(true);       Console.WriteLine("Updated BitArray...");       foreach(Object ob in arr) ... Read More

Byte Struct in C# represents an 8-bit unsigned integer. Following are the fields −Sr.noField & Description1MaxValueRepresents the largest possible value of a Byte. This field is constant.2MinValueRepresents the smallest possible value of a Byte. This field is constant.Following are some of the methods −Sr.noField & Description1CompareTo(Byte)Compares this instance to a specified 8-bit unsigned integer and returns an indication of their relative values.2CompareTo(Object)Compares this instance to a specified object and returns an indication of their relative values.3Equals(Byte)Returns a value indicating whether this instance and a specified Byte object represent the same value.4Equals(Object)Returns a value indicating whether this instance is equal to ... Read More